The taxonomy of the Ruppia genus is uncertain due to difficulties of identification. Species can be extremely morphologically variable and respond to differing environmental conditions. Problems in species identification are linked to differences in environmental conditions.

Justification:
There is little information available for this species and it is only known from a small number of records. The threats to this species are unknown. This species is listed as Data Deficient. Research on the taxonomy, distribution and threats are recommended.

This species inhabits standing open water (brackish) and brackish creeks, and less commonly, freshwater (Moore 1973, Broughton and McAdam 2005). This species has branched filiform stems up to 40 cm in length and dark green leaves up to 20 cm in length (Moore 1973).

Broughton, D.A. and McAdam, J.H. 2005. A Checklist of the Native Vascular Flora of the Falkland Islands (Islas malvinas): new information on the species present, their ecology, status and distribution. Journal of the Torrey Botanical Society 132(1): 115-148.